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H. E. BARLOW. MACHINE FOR MAKING TOOTHPIGKS. No. 592,074. Patented Oct. 19, 1897.

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H. E. BARLOW.

MACHINE FOR MAKING TOOTHPIGKS. 7

No. 592,074. Patented Oct. 19,1897.

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HOWARD E. BARLOW, OF PROVIDENCE, RHODE ISLAND.

v the feed motion at the outerjside of the ma- Be it known that I, HOWARD EBARLQW, of chine. A short vertical shaft 70 is held be- Providence, in the county of Providence and tween the upper part of the standards D in 55 State of Rhode Island, have invented certain bearings fast on arms 1; 0, projecting from the new and usefullmprovements in Machinesfor inner standard D, and a worm-gear S, fast on Making Toothpicks; and Ido hereby declare the upper end of the shaft it engages in a that the following is a full, clear, and exact worm 9, fast on the shaft a, and abevel-gear descriptionthereof,referencebeinghad to the n on the lower end of the shaft 10, engages 6o accompanying drawings, and to the letters of with a bevel-gear n, fast on the end of the re reference marked thereon, which form a part shaft J, which gives motion to the feed. Two of this specification. plates L L are held to slide horizontally in This invention relatesto the class of woodways on the side frames A. To give motion working machinery, and its object is to proto these plates, a segment-gear h is placed 65 duce a machine for making toothpicks and under each plate on short shafts having bear- I 5 other like small articles of wood, properly ing attached to the side frame A, and engage shaped, pointed, and finished ready for use in toothed racks a a, secured to the under as they comefrom the machine. side of eachplate L L.

It is fullyexplained and illustrated in this A gear-wheel 1", fast on the outer end of the .70 specification and the accompanying drawshaft J engages with a gear-wheelr', held on ings. V v Y a stud in the side frame. Each gear-wheelr Figure 1 represents a top View of the mahas a crank o,fast on itslouterf face, and these chine. Fig. 2 is a side elevation with-the cranks are connected by rods jj fwith cranks upper half of the machine shown in section. cVc on the ends of the segment-shafts, so 75 Fig. 3 is a vertical cross-section taken on line that as the gear-wheels r r revolve they will m 00 in Fig. 1. Fig. 4 is a perspective view of give motion to the segments and. through the one of the knives. Fig. 5 is a vertical crossracksa a to the tables L L. The boxes 1111, section of the end of one of the rolls, showing that hold the shaft of the rolls d d, are held ,how the knives are held in place. Fig. 6 is a to slide vertically a short distance between '80 perspective view of one of the blocks and a two posts H H, to allow the rolls to approach finished toothpick. or recede from each other, which is accom- The construction of the machine is as folplished by means of the following mechanlows: Two vertical side framesA A are bolted ism: Two short horizontal shafts Z Z are held fast to the bed-plate O. in bearings on the posts H, and each of these 85 D D are two standards, which are also fasshafts has a crank s on one end, and these tened to the bed-plate C, and connected totwo cranks are connected by a rod y with a gether at the top bythe bar N A drivingcrank m on the upper end of the shaft 71;. shaft a is held in bearings attached to the- Cross-arms e are made fast on each of the side frames A and standards D, and has a shafts Z- 1. These arms are connected on the 90 driving-pulley F on its outer end. A like one side by a bar and straps S" to each lower shaft a is also held in like bearings in the box '5, and the arms on the other side are conside frames and the standards, and is connected with the upper boxes at S, so that nected with shaft a by two gear-wheels b b. when the shafts Z Z are rocked by the crank These two shafts a a carry the cutter-rolls m and connecting-bar y the arms 6 on one 5. d d, and are divided into two parts each at f, side will rise and draw up the lower boxes 5 and the parts are connected together at that and at the same time the armson the other point by means of loose couplings c, that will side of the shaft will move down and push allow the rolls d d to approach each other or down the upper boxes. In this way the rollsto recede without disturbing the parts 'of the will be made to approach each other to out too shafts held in the bearings attached to the the points of the toothpicks, and when the. standards D D; Another shaft J, having shafts Z Z are rocked the other way by the bearings in the outer side frame A and the crank m the rolls will be separated.

The construction of the rolls d and arrange- MACHINE FOR MAKING TOOTHPICKS.

SPECIFICATION forming part of Letters 'Patent No. 592,074, datedOctober 19, 1897.

Application fil d March 1, 1 897. $eriall lo. 625,462. (No model.)

To all whom it may conoerm.

inner standard D, is placed below to operate ments of the knives 'v on them to enable them to cut the picks to a fine point and support them while it is being done is this: The knives o are made with sharp notches (see Fig. i) of the shape desired for one side of the picks and set radially in the rolls, so that only the teeth of the knives project, and the mode of holding them in the roll is shown in' Fig. 5, in which (Z is the roll, 1) the knives, which are beveled away at the outer corners h of their ends, and a collar 5, having a concave inner face, is fitted to screw on the shaft of the roll and project over the incline on the ends of the knives and hold them in place. Between each of the knives a groove .2 is made deep enough to receive that part of the knife that projects above the surface of the roll, and the two rolls are so geared together as to bring the knives of one roll in the grooves of the other roll. This enables the rolls to come close together and cut the picks to a fine point, as the roll d on each side of a groove affords the necessary support to the small part of the wood that constitutes the point of the toothpicks.

In operation the blocks of wood R, (see Fig. 6,) in which shape they are provided for the purpose, are placed before table L (see Fig. 2) when it is clear out to the left, and as the shaft J revolves the cranks 011 the gears r "I", and by means of rods 7', the scgment-gears move the plates L L toward each other and push the blocks 2' i in between the rolls (Z (1, which are made to revolve very fast, the knives '0 will cut the upper and lower surface of the block in flutes, the grooves between these flutes meeting in the middle and making the block into separate picks. As the wood passes between the rolls it is met by the open jaws E on the plate L, which, as that plate is moved back, are closed by an incline plate m, fast on the frame, that presses down the arm 6" and causes the jaws to grip tight 011 the block and draw it through the rolls as the plate goes back. At the same time the crank at will draw 011 the rod y and cause the shafts Z Zto draw the rolls together and cut the picks to a point, tapering down from one-third or so from the other end. As the crank r r completes a revolution the plate L is again moved away from the rolls and is ready to receive another block. As the plate L approaches its outer limit the arm c passes up the incline n, and the jaws open and discharge the picks.

Having thus described my improvements, I claim as my invention- 1. I11 a machine for making toothpicks the combination of two rolls having notched knives on their peripheries longitudinal grooves made in the rolls between said knives, and arranged to run together with the knives in one roll entering the grooves in the other roll, substantially as described.

2. In a machine for making toothpicks the combination of two rolls having notched knives on their peripheries longitudinal grooves made in the rolls between said knives, and arranged to run together with the knives in one roll entering the grooves in the other roll, with means for feeding the blocks of material to said rolls, substantially as described.

3. In a machine for making toothpicks the combination of two rolls having notched knives on their peripheries, grooves made in the rolls between each two knives, and arranged to run together with the knives in one roll entering the grooves in the other roll, with means for causing the rolls by the operation of the machine, to alternately approach, and to recede from each other, substantially as described.

4. In a machine for making toothpicks the combination of two rolls having notched knives on their peripheries grooves made in the rolls between each two knives, and arranged to run together with the knives in one roll entering the grooves in the other roll, a reciprocating feedunotion consisting of two plates sliding in ways, with means for cans ing the two plates by the operation of the machine to move forward and back, substantially as described.

5. In a machine for making toothpicks the combination of two rolls having notched knives on their peripheries grooves made in the rolls between each two knives, and arranged to run together with the knives in one roll entering the grooves in the other roll, boxes or bearings for said rolls held to slide in ways toward, or from each other, rockershafts held in bearings over said boxes, crossarms fast on said rocker-shafts, connections from said arms on one side of each shaft to the lower boxes, and connections from the arms on the other side of each shaft to the upper boxes, with means for operating said rocker-shafts, substantially as described. G. In a machine for making toothpicks the following instrumentalities: two rolls having knives set in their peripheries, and having grooves in them between the knives, sliding boxes for said rolls to turn in, rockershafts placed over said boxes with arms connected to the boxes, sliding tables to carry the wooden blocks, racks on said tables with segment'gears engaging in said racks, a feedshaft with gears and cranks to move said segment-gears, a worm-gear engaging with a worm on a driving-shaft, and a connection between the worm gear and said rockershafts, substantially as described.

In testimony whereof I have hereunto set my hand this 20th day of February, A. D. 1807.

HOIVARD E. BARLO\V.

In presence of- BENJ. ARNOLD, M. E. LAWToN. 

